Free Online Video Compressor | Compress MP4, MOV, WebM | ChungDoi

100% free, no ads

Most online video compressors add watermarks, cap duration, or force signup to keep going. This tool is fully free, no watermark, no duration cap, no account. Compress as many videos as you want, even long wedding films, without interruption.

FAQ

Is my video uploaded to a server?

No. The entire compression process happens in your browser. Your video never leaves your device, ensuring complete privacy.

How long does compression take?

It depends on the video length and your device. A one-minute video averages 30-60 seconds. Large videos (400MB+) may take a few minutes. Please keep the tab open during compression.

Is there a file size limit?

No limit. Since processing happens in your browser, it depends on your device memory. Desktops typically handle 1-2GB videos; phones should stay under 500MB.

What quality setting should I use?

For keepsake videos, choose 70-85%. For videos shared via chat or messaging apps, 40-60% is enough. 720p resolution gives a good balance of size and quality.

What output format do I get?

MP4 (H.264 + AAC) which plays on iPhone, Android, desktop, WhatsApp, Facebook, YouTube.

Why is the first run slower?

On the first run, your browser downloads the video encoder (~25MB). It is cached afterwards, so subsequent runs are instant.

What feature do you need?

We'd love to hear your suggestions

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